Piling



March 5, E, POMYKALA 1,704,577

- PILING Filed vJuly 5, 1927 2 sheets-Sheer l WITNESSES T INVENTOR @13u91 I I Kafka/ fdd @wt/i674.

ATTORNEYS March 5, 1929. E. s. PoMYKALA YILING *2 Sheets-Sheet. 2

Filed July 5, 1927 Patented Mar. 5, 1929.,

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EDMUnDs. roMYKAiLA, or sevannarneiionem,

PILING.

Applicationl filed July 5,

` This invention relates to a means :for ex-` cavating in wet and infirm earth, sand, etc. and has for one of its objects the conversion of such earth to a solidfirm condition -by means-of direct refrigeration so that itmay better be worked with. Another object is the provision of suitable metal piling forthe ap# plication of the freezing medium. 1

Referring now to the drawings, Figure l shows la side elevation of oneforin of metal pile for carrying out the invention, the form shown being a combination pipe pile and sheet pile. v l

Figure 2 shows a second form of combination sheet and pipe pile in side elevation.

Figure 3 is a side elevation, partly in section, of a pipe pile, showing the connections 'for the entrance and exit of the refrigerating agent.

Figure 4 is Figure l.

Figure 5 is a. plan view in section of the pile shown in Figure 1,said view being taken on the line 5-5 of Figure l.

Figure' 6v is a plan view of the pile shown a plan viewof vthe'pile shown'in e in Figure 2.

Figure 7 is a plan view insection of the pile shown in Figure'2 taken' on the' line 7 7 of that figure. f

Figure 8 is adiagram showing the arrangement of pilingrefrigerating machinery and connections therefor on a plot of ground to be excavated. The diagram corresponds to a plan View.

Referring now again to Figures 1 to 7, inelusive, numeral 1 indicates a pipe or shell, closed as to its bottom portion 2, the walls here being materially thickened to withstand driving. The upper end of the shell is threaded as shown at 3, the threads serving for the attachment of a cap 4. vInto the said cap, an inlet pipe 5 extends, the said pipe being intended for the entrance of a refrigerant, preferably ammonia, either in gaseous kor liquid anhydrous forms. v v It will be noticed from Figure 3 that the Y pipe 5 extendsalmost to the bottom of the shell, thus insuring a liquid seal on the pipe if liquid anhydrous ammonia ,isused lnto one side of the cap 4, a second pipe 6 is threaded, this pipe being the exit for the expanded refrigerant.

It will be evident from the above disclo* sure that if the pile be driven into soft, wet earth or sand and a refrigerantintroduced into the pipe 5, the natural expansion of such 1927.' ySerial No. 203,666."`

substance within the shell will produce inf` tense cold which willreadily exert its effec-:tf-

through tliewalls of the surrounding earth. n To avoidthe. damage due to thecap 4 and its connecting pipe which. wouldinevitably occur if it were'attempted to drive a` pile of this nature with such a cap on it, the'cap 4 may be replaced with a plain'capv having no shell to freeze` the Vpiping' connections an'dhaving'heavier walls 1 than the usual cap. After the pile isv fully driven, replacement of the plain' heavy capA by the cap4 may be readily accomplished. rlhe advantages ofrefrigerating piling and sheet-steelpiling maybe vcombined inte one structure, of .which combined construction yFigures 1,' 2, 4, 5, 6l and 7 are examples.

y In the construction shown in Figure l in side elevation and in Figures .4 and 5 in plan, a pileof the kind shown'in 'Figure 3 is shown atl inthe midclle'part ofthe webportion 7 of a-sheet steelpile'l.' It will be noticed from- F igures4 and 5` that the pipev pile lies equally on either side of the web 7. Such a construction may 'be' made by lwelding fhalves of a split sheetv steel pile to the pipe pile.v

In this construction the pipe pile extendsv completely tothe bottom ofthefsheetfsteel-f i pile but not as far as the top of the latter.

By such a construction, the combination pile may bedriven by blows on the top ofthe sheetsteel pile without damaging the top of the pipe pile. An opening 9 is provided vin the sheet steel pile around the head of the pipe pile so as to'allow free access to the head of the said pipe pile.

lt will' be noticed from Figures 4 and 5 that the sheet steel pile is provided vwith the usual locking joints 9 and 10 on its edges. i

ln the form illustrated in Figures 2, 6 andv 7, protection of the `head of the pipe pile isv provided by sheet steel Ahead l1. The lower part of the pipe pile is however left free of any encumbrances sol that it may enter the ground easily. Q

The form of dispenses with the usual locking joints on the edges of the pile shown in Figures l, 4 and 5 and linstead uses a. special edge shown sheet steel head here employed at 12 invFigures 2, 6 and 7. Such edge is made of a pair of angle irons 12a riveted to the flat web 13 in the positionshown. An opening 9 around lthe head of the pipe pile is alsoprovided.

In Figure 8 a complete refrigerating plant is shown connected to a series of piles in iio CFI

place in the ground, allof the piping connections beingy shown. Since the units of the refrigerating Vplant bear legends in the drawing they are not designated'by numerals. p vThe flow of refrigerant through them is 1n dicated. by arrows.

Liquid anhydrous ammonia is allowed to Y expand through a reducing valve lLinto a line of pipe in -which the piles 1 are connected fin. series In practice as many rows of piles are successive-ly driven into the ground and operated according to the area and condition of the zone to be treated. y Y

The arrangement of piling and exterior piping is well within the skill of the engi-v neer to work out for himself and may be varied to suit various conditions without (leparting rfrom the spirit of the invention.

Having now described the invention, I claim-l l; A hollow7 pile'adaptedvto contain a hq*- uid and allow its free passage theretluough,y

said pile having a tubular middle portion and a p airof metal wings or webs extending horizontally therefrom. e 2. vA hollow pile adapted to cont-ain a liq'- uid land allow-.its freepassage therethrough, said pile having a tubular middle portion and a pair of metal wings or webs extending ,horizontally therefrom, said websbearing locking joints on their outside vertical edges.

3. Avhollow pile adapted to contain a liquid and'allow its free passage therethrough, said pile having a tubular middle portion and a pair 0f metal wings or webs extending horizontally therefrom, said webs bearing locking joints on their outside vertical edges,

the said webs being joined together above the top of the hollow pile.

4t. A hollow pile adapted to contain a liquid and allow its free passage therethrough,

said pile-having a'tubular middle portion and a pair of metal wings or webs extending horizontally therefrom, said webs bearing locking jointson their outside vertical edges,

the said webs beingjoined together above the top of the hollow pile,'and being provided lwith an opening in the web immediately around thc top of the hollow pile.

5. A combination tubular pile and sheet `pile comprising a middle portion of tubular 7. As an article of manufacture, a hollow pile throughwhich a refrigerant is circulated to'frecze earth in which the pile is embedded,

a plurality of wings radiating from thepile, and means for connecting the edges of the wings of adjacent piles. n

8.' As an article of manufacture, a hollow pile through which a refrigerant is circulated to freeze earth in which the pile is embedded,

oppositely extendingwings on the pile, and

coupling means yon each of the wings for engagement with the wings of an adjacent iden-k tical pile.

EDMUND S'. POMYKALA. 

